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\title{Concept Clustering of Evolving Data}

\author{
    Shixi Chen$\ ^\dag$\hspace{1cm}Haixun Wang$\ ^\ddag$\hspace{1cm}Shuigeng Zhou$\ ^\dag$
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    $^\dag$Fudan University, China, \fontsize{9}{9}\selectfont\ttfamily\upshape
    \{chensx,sgzhou\}@fudan.edu.cn\\
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    $^\ddag$IBM T. J. Watson Research Center, USA, \fontsize{9}{9}\selectfont\ttfamily\upshape
    haixun@us.ibm.com
}

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\footnotetext{123}

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